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authorBing Zhao <bzhao@marvell.com>2013-04-12 19:34:18 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-04-22 21:38:36 +0200
commitc43933e61ea9b630521bf0d5cf06c155478308a7 (patch)
tree6c6706b2006fe66980d0ea451d64b685fffe80c0 /drivers/net/wireless/mwifiex
parentmwifiex: fix use-after-free in beacon_ie processing (diff)
downloadlinux-c43933e61ea9b630521bf0d5cf06c155478308a7.tar.xz
linux-c43933e61ea9b630521bf0d5cf06c155478308a7.zip
mwifiex: remove redundant initialization for bss_descriptor
Initialization of bss_descriptor is unnecessary as the entire structure will be overwritten by a memcpy followed by. Initialize disable_11ac flag properly by setting it to true in mwifiex_fill_new_bss_desc(). Reported-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex')
-rw-r--r--drivers/net/wireless/mwifiex/scan.c29
-rw-r--r--drivers/net/wireless/mwifiex/sta_ioctl.c5
2 files changed, 5 insertions, 29 deletions
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 37b24e830844..9cf5d8f07df8 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1500,36 +1500,7 @@ static int mwifiex_update_curr_bss_params(struct mwifiex_private *priv,
if (ret)
goto done;
- /* Update current bss descriptor parameters */
spin_lock_irqsave(&priv->curr_bcn_buf_lock, flags);
- priv->curr_bss_params.bss_descriptor.bcn_wpa_ie = NULL;
- priv->curr_bss_params.bss_descriptor.wpa_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_rsn_ie = NULL;
- priv->curr_bss_params.bss_descriptor.rsn_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_wapi_ie = NULL;
- priv->curr_bss_params.bss_descriptor.wapi_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_ht_cap = NULL;
- priv->curr_bss_params.bss_descriptor.ht_cap_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_ht_oper = NULL;
- priv->curr_bss_params.bss_descriptor.ht_info_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_bss_co_2040 = NULL;
- priv->curr_bss_params.bss_descriptor.bss_co_2040_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_ext_cap = NULL;
- priv->curr_bss_params.bss_descriptor.ext_cap_offset = 0;
- priv->curr_bss_params.bss_descriptor.beacon_buf = NULL;
- priv->curr_bss_params.bss_descriptor.beacon_buf_size = 0;
- priv->curr_bss_params.bss_descriptor.bcn_vht_cap = NULL;
- priv->curr_bss_params.bss_descriptor.vht_cap_offset = 0;
- priv->curr_bss_params.bss_descriptor.bcn_vht_oper = NULL;
- priv->curr_bss_params.bss_descriptor.vht_info_offset = 0;
- priv->curr_bss_params.bss_descriptor.oper_mode = NULL;
- priv->curr_bss_params.bss_descriptor.oper_mode_offset = 0;
-
- /* Disable 11ac by default. Enable it only where there
- * exist VHT_CAP IE in AP beacon
- */
- priv->curr_bss_params.bss_descriptor.disable_11ac = true;
-
/* Make a copy of current BSSID descriptor */
memcpy(&priv->curr_bss_params.bss_descriptor, bss_desc,
sizeof(priv->curr_bss_params.bss_descriptor));
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 27729cfef151..311d0b26b81c 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -184,6 +184,11 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
else
bss_desc->bss_mode = NL80211_IFTYPE_STATION;
+ /* Disable 11ac by default. Enable it only where there
+ * exist VHT_CAP IE in AP beacon
+ */
+ bss_desc->disable_11ac = true;
+
return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
}